要よう予よ約やく

expression

reservation required; prior booking essential

Fixed phrase used in signs, advertisements, and instructions to indicate that a reservation or booking is mandatory. Often seen in contexts like restaurants, events, and accommodations.

• このレストランは要よう予よ約やくです。

  This restaurant requires a reservation.

• イベント参さん加かは要よう予よ約やくとなっております。

  Participation in the event requires prior booking.